Scaffold



June 8 1926. E' SCHUL-.ER

SGAFFOLD Filed Sept. 15, 1922 2 Sheets-Sheet l2 WITNESS z Schaf/ewlNvN-ron A ATTORNEY Patented June 8i, 1926. y"

UNITED swirl-lsy EDWARD SCHULR, 0F SPRINGFIELD, ILLINOIS.

SCAFFOLD.

Application led September This invention relates to scatl'olds o1 stagesdesigned for use by Workmen employedin Working uponbuildings and has:l

for its object the provision of a novel device which is placed inposition fromthe ground and which therefore renders itunnecessary toclimb out upon the roof to affix any supp0rts.

An important and more specific object is the provision oi' a device ofthis character which includes a vertical support adapted to be held inspaced relation to the side of a building and carrying a carriage whichis vertically movable by means ot block and tackle operated by a Workmanusing the device, the upriwht support being held inposition byadjustable inclined brace members which engage upon the ground. y n Afurther object is the provision of a device of this character which isso construct-r ed that the brace member maybe placed at differentpositions so as to vary its angle with respect to the vertical supportand the side of the building. f y 'i Y An additional object is theprovision of a device of this character Which will be simple andinexpensive in manufacture,y easyto place in position and use, efficientand durable in service and a general improvement in the art. c

With the above and other objects andad# vantagesin View the inventionconsists in the details of construction to be hereinafter more fullydescribed and claimed and illustrated in the accompanying drawings, `inwhich n Figure l is a side elevation of the device in position, y i fFigure 2 is a front elevation thereof,

Figure 3 is a perspective view of the sup-l porting member Aat the topof the inclined brace, c Figure 4 is a cross section on the line 4 4 ofFigure l, e c

Figure 5 is a detail view of the slidable carriage,l y

Figure 6 is a side elevation of a modified form ot slidable carriage,

Figure is a detail section on1 the line 7--7 of Figure, y n

Figure 8 is `a .detail View` of an element of this modiiiedconstruction,and f i Figure 9 isa horizontalsection taken on the line 9-9 ot' Figure5. Referring more particularly to the drawings the letter A designatesthe sideot' a 15, 1922. serial No.. 538,443.

building andB designates a portion of the root thereof. It is to beobserved that the entire device A1s designed for usein connectionivithbuildings ot' thattype Which'havel no bulletin board, the type beingillustrated.

In carrying out the invention I provide an upright designated vbroadlybythe numeral 25 and vformed oftelescopic sections 26 and Q7 rectangularin crosssection and held together as by means of a latch memberl 29engaging through registering ones of a plurality `ot holes 30 in thesections'.l .It is intended that two upright members be used and theymay be spaced any desired distance apart depending upon the length ofstage to be used as Will be hereinafterfexplained.

Carried by the upper extremity lof the up-k per' section 27 is a head 3lkformed with an apertured bracket 32 for .a purposev to be described. v

The means for supporting lthe upright member 25 consists of a bracedevice including 'a lbase `portion Adesignated. broadly by the numeraland 'including spaced bars Set 'connected',atintervals by crossplatesand having secu'redto their' lovver ends diverging legs jffhel side bars34 are each provided 'With la series of holes 37. Slidable betweenthebarsl jot this base mein-l bcr is a bar 38 held in adjustedpositionbyv means of a pin 39 Which'passesfthrough selected' ones of ,theholes-37 and through a hole in the bar 38." AAt the 'upperLe-nd' ot' theI bar 38, which isitorniecl hollow is lSecured a bracket A4() carryingapull'ey 4l about which has its other end connected With the lower endot a `channel bar 43 s lida ble-Within the bar 88, andthe purpose of theflexible member t'is'to 'pull thebar 43 upwardly out of thev bar v38 andto hold it: inv such adjusted position. The channel Vaccommodates theflexible member. Also connected Wit-h the fbar 3S `is a bracketLMewvi'th vvhich 'is' connected one 'end ot' -a rope or the like 45which may be pulled upon to lowery thebar 38 between the -bars 34 incase it should bind from anyreason and fail todrop" gravita# tionallyupon removalvot the pin 39(y i' f Secured upon the upper end v,of thebar 43 is an inclined bar 46 adapted to be engaged against/thesideyva-llA of thebuilding.

which yistrained a flexible member 42 4which` Associated with the lowerend' o each upright member 25 is a steadying device designated broadlyby the numeral 48. This member comprises a pair of'spaced Vbars 49 whichare each provided with a plurality ot holes 50 and which have their' endportions.

laterally and then right angularly offset as shown at l forengagement-against the side of the building. The bars 49 are held inproper spaced relation' by a barz52 which is secured tothe offset eiidportions as clearly shown. Associated with the ba'rs 49 are brackets 53'having rightl angularly bent ends slotted foifslid'abl'e' engagementupon' the bars'l 49,and these brackets are each formed with aholeadapted to register with selected ones of the holes 50. Disposedinwardly of the brackets 53 'is a' U-shaped bracket 55v secured theretoand likewise having its arms formed .with holes; This U-shaped member isrelatively long and is adapted to slidably r engage agaihst'the upright25.' kA.f pin 56 is employed forpassing through the registering holesfor `holding this steadying member in properadjusted position upon'theupright 25 and thispin is'proyided at one end with a. ring head 57 andat its other end with a cotter pin or the like 58 whereby to pre-Vent'accidental withdrawal.

Slidably mounted on the upright 25 is a carri age designated broadlybythe numeral ,y 60, which carriage includes an upperportion constructedof a member 6l which has its rear end secured to a vertical bar 63. Thecarriage further includes a lower portion formed oi? a pair of bars 62of angular formation at theie'ar ends of which is suitably journaled aroller 62a. Thecarriag'e Vturtherincludes a vertical member 66Lterminating in' Van eye 66at'its upper endand having itsk intermediateportion secured to thev bars 61 asfshown at 66". y Secured to the of apin 620er the like whereby these elements may be held in the desiredrelatively adjustedl positions. Theangular trame or bracket structure issecured to a horizontally Vextended bar 62b which has an upturnedforward end portion 62e with which is connected a diagonal brace bar `64which is in turnhconnected at 64a with the member 6l. Journale'd withinthe coniinesgof the intermediate pv'ortionof the angulary :trame orbracket structure 60 `are spaced rollers 66f designed to'bea'r "againstopposite sides of the 'upright 25 during'vertical lmo veine-nt of theentire carriage. The above described eye 66 is provided for the' purposeotpermitting engagement therein ot' whatever hook or other fastening isprovided on the lower pulley blocks 6T which form part of a block andtackle structure further including` a pulley block 68 suspended from thebracket 32.

Pivoted at 70 upon the inclined bar46 is a bar 7l' which is pivotallyconnected at 72 with a depending inclined brace 7 3 which is slidablethrough the bar 46`and which is formed with notches 74 selectivelyengageable upon a pin 75, this structure permitting s adjustment tobring the bar 7l vinto `rhorizontal position for the purpose ofsupporting a board, ladder or the like.

ln Figures 6, 7 and' 8 l have shown a inodiiication of the slidablecarriage in which' the vnunn'eralb() designates an uprightarmterminating in an enlargement 81 formed with a hole 82 and a notch 83,either ot which may be used'for attachment of the lower pulley block 67.'At its lower end this arm carries a' U-shaped bracket 84 upon y whichisjournaled a roller 85j and which has its arms formed with holesthrough which may be passed a pin 86 held against withdrawal as bya-cotter87 or the like. Secured outwardly otl thebrac'ket 84 at itsconnection with the' arm 80 are angle plates 88 through which areslidable the' arms of a U- shaped yoke 89 which has'its bight portioncarrying a wheel or roller 90 adapted to bear against the side of thebuilding worked upon. The arms of this yoke 89 are formed` with holes 91which may be selectively broughtint-o registration with the holes in thebracket 84 so thatthe pin 86 may be inserted through these registeringholes for maintaining adjustment. l

Garriedby the lower end'of the arm 8O is anvL-shaped bar 92 with theree'end of whichis connected a brace 93 which extends diagonally upwardand which is connected with a U-shaped bracket 94 which straddles thearm 80 and within which is mounted a roller bearing 95'. The openportion of the bracket 94 has extending thereacross a fremovable pin 96held against withdrawal by a cotter or the like 97.

ln the above described modification it will be apparent that the rollers85 and 95 bear against the upright 25. `When it is desired to disconnectthe carriage lfrom the upright it is' merely necessary to withdraw thepin 96 and yalso the pin 86 whereupon separation maybe edected whilethe` upright is in place and while the carriage is suspended. In theusel vof the device two are employed and it will be seen thatthe membersis effected by pulling upon the cables42as will beo'bvious andtheadjusted position is maintainedby tying or otherwise securing the freeends of the cables.l The uprights 25 are of course supported :from theinclined or angularly offset upper ends i6 by means of the hooks 47described and it isy to be noted that the lower ends `of the uprights 25are held spaced from the side of the building by the steadying members.

Assuming that everything has been as-` sembled and applied as abovedescribed and that a ladder or board is placed from one= carriage memberto the other, the Workman takes his place upon the platform and cancontrol. the height of the stage by manipulating the block and tackle.It Will vbe seen that there is no necessity whatever for getf ting outon the roof of the building to effect placing of any of the parts and itis also obvious that the device is held in position Without the use ofany securing members Whatever which would mar or deface the side of thebuilding. Another feature `of advantage is that the various parts of thedevice are quickly and easily lcapable of disassembling and may occupybut very little room in transportation or storage.

From the foregoing description and a study of the drawings it will beapparent that I have thus provided a simply constructed and consequentlyinexpensive scaffold or stage device which will be highly advantageousfor the purpose specified and which will efficiently perform all thefunctions forwhich it is intended. y

While I have shown and described the preferred embodiment of theinvention it is of course to be understoodthat I reserve the right tomake such changes in the form,

4construction and arrangement of parts as f ture.

vwill not depart from the spirit of the invention orthe scope of thesubjoinedclaims.

Having thus described my invention I claimiz LA device of the characterVdescribed comprisingy an extensible `inclinable brace member having itsupper end obtusely inclined and designed for engagement aga-inst theside of a building, means for supporting a stage from the upper lend ofsaid bracel member, an arm plvoted at one end upon the upper end of saidbrace member, a brace rod pivotally connected With the free end of fsaid arm andhaving its lowerv edge serrated,

ivoted on the angular upper end of the extensible bar vand adapted toconstitutea support for a platform, a brace pivotallyl connected Withsaid arm and having its edge serrated, and an element carried by theangularl end yof the extensible bar engageable by a serration forholding the arm in horizontal position;

In testimony whereof Iaflix my signannWAnn sonnigen.

